Archives Catalog Entry
Ion chamber, early
Smallest cylindrical electroscope with clock and photographic drum. Used by Millikan and Bowen in 1922. See Physics Review 27:353 (1926). Returned from Pomona College Physics Department, 5/92. Compare ST-CR-01. Manufacturer: Caltech Physics Shop.
Millikan, Robert Andrews (Experimental Physicist, Nobel Laureate, Caltech President)
Jan. 1, 1922
MEDIUM: Metal; QUANTITY: 1
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